The NP-BX1 RECHARGEABLE LI-ON BATTERY : 3.6V 950MAH is designed to replace the Sony NP-BX1 battery. Small and lightweight, Lithium-ion batteries can be charged or discharged at any time without developing memory effect.
Compatible with the following Sony cameras
Cyber-shot: DSC-RX100, DSC-RX100 II, DSC-RX100 III, DSC-RX100 IV, DSC-RX1, DSC-RX1R, DSC-HX300, DSC-HX50V, DSC-WX300, DSC-HX400V.